Pinking machine



y 23, 1939- v. J. SIGODA 2,159,717

PINKING MACHINE Filed April 30, 1938 INVENTOR, V/cro? d 5/600/1 ATTORNEY.

o Mei- 3 PATENT OFFIGE casamrmxn'wdmomnn v sas J. sum, New

York, N. a corporation of New York York, N. 1., minor to Man Sew Plnking Attaclun ent Corp., New

; Application April so, ma. Serial m5. 20am 1: Claims. (01. le -11.5)

This invention relates to pinking machines and o has for its general object and purpose to provide certain improvements in a machine of the type 1 disclosed in mypending application for patent,

5 Ber. No. 166,925, filed Oct. 2, 1937, whereby the :machine is greatly simplified and production cost reduced toe/minimum, without sacrifice of oper- R fiating efflciency or quantity and quality producw J1: jtionofthe pinked fabrics. l

1 ,AnotherJobject of the invention is to provide L ma Ipinking machine as a completely assembled with a cloth plate comprising a compara-' tively smallnumber of parts, light in weight, and which maybe easily, quickly and rigidly mounted is upon a work table or ben'chn relative to the cutter. This arrangeme D 1 mits of a greatly simplified mounting of the cutj i I 30 ter and driving disk with the power operating iqmeans therefor; in comparison to my prior invention so that the production cost and selling price of such machines may be materially re- 1 v j H 1:] Itisalso afurther detail object of the inven- "jtion to provide: an improved construction and mounting of the pressure roller so that seamed fabrics] may be "rapidly and accurately pinked or ltrimmedini closely adjacent relation to the seam.

401%} with the aboveuand other objects in view, the j invention consists in the improved pinking may jchine fand in the form, construction and relative arrangement of its several parts; as hereinafter may be more fully described, illustrated in 4 the accompanying drawing and subsequently infcorpora'tedlin the 'subjoine'd claims. 1:;{1n the drawing wherein I have disclosed a simpleand practical embodiment of my present invention, andin which similar reference chare t of the present inventionmounted upon.

f 5 table or beach.

In the invention of my prior application the o in adjacent vertical planes about a 'common'hor- Q, izontal axis, means being providedto permit of eccentric shifting movement of the driving disk q acters designatecorresponding pa s throughout broken away. i Fig. 3 is a transverse sectional view taken on the linel-SofFigl. J

Fig. 4 is an enlarged detail sectional view taken 5 on the line 4-4 of Fig. 3, and,

Fig. 5 is a detail elevation showing an alternative form of the pressure roller.

Fig. 2 is a side elevation thereof and partly Referring in detail to the drawing, T indicates the'work table, bench or other appropriate support having an opening 0 therein.

The several parts of my improved pinking machine are mounted upon or carried by a cloth plate I which is ofsuch dimensions that when placed upon the table or bench T it overlaps the 16 edges of the opening 0 as clearly seen in Figs. 2 and 3 of the drawing. Upon this cloth plate a casting 6 is suitably secured, said casting em- ,bodying a hollow pedestal 8' at one end of the cloth plate in the upper end of which a horigo zontally disposed shaft 1 is suitably journalled,

' said shaft being provided at one ,of its ends with means, such as the belt pulley 8, for connection with a suitable source of power. A verticallydisposed shaft 9 in the hollow pedestal or housing 6 is geared at its upper end to the shaft 1. 1n the present instance. I have shown the shaft 1, provided with a worm I0 meshing with the worm gear I I fixed to the shaft 9. To the lower end of the shaft 9 below the cloth plate 5, the gear I2 isfflxed. The cloth plate I is provided with a longitudinally extending slot receiving a part of the casting having a depending neckportion l3 provided with an extension I bearing on the under side of the cloth plate beyond one end of the slot therein and suitably secured to said plate. This depending neck I! has integrally formed therewith a horizontally disposed bearing sleeve ii for the shaft l6. v

To one end of the shaft ii a collar I1 is secured by the set screw ll, andthe pinking cutter I9 is closely fitted upon the end of said shaft and rigidly secured to the collar II by one or more screws 20. The outer side face of said cutter, adjacent to the inner ends of its teeth is formed with an annular rib or flange 2|;

A driving disk 22 of somewhat greater diameter than the cutter i9 is positioned in paralmentgrelative to said cutter and shaft.

The disk 22 is yieldingly urged into frictional contact with'rib 2| to rotate as a unit with the cutter l9 by means of the spider 24 having a plurality of radially disposed resiliently yieldable arms 25, each of which carries a wear plate 23 in direct pressure engagement against the face of the disk 22. A screw 21 is axially threaded into the end of the shaft l6 and has a head 28 hearing against the spider 24, so that by adjustment of said screw, the pressure of the spider arms against the disk 22 may be regulated, and

resistance to the eccentric shifting movement of pending fork 33 formed on one end of the horizontal arm 32. This arm at its other end is formed with a sleeve 34 having its axis disposed parallel with the axis of the roller 3| and mounted for rocking movement upon the rod 35 fixed in spaced ears 36 formed on the casting 6.

A vertical rod 31 has its lower end fixed in the casting 6 and extends upwardly through an opening in the arm 32. The upper end of said rod is threaded to receive the adjustable nut 38 between which and said arm the pressure regulating spring 39 is interposed. It will thus be understood that by the adjustment of said nut 38 the downward pressure of roller 3| upon the fabric as it is fed between said roller and the cutter l9 and driving disk 22, may be regulated as required.

At the forward end of the opening 30 in the cloth plate a fabric directing plate 40 is secured to the upper surface of the cloth plate, said plate 40 having rounded or convex edges over which the fabric moves and is directed by said plate between the pressure roller and the driving disk 22 and the cutter IS; The edge of the fabric is positioned relative to the cutter l9 by means of the adjustable guide4| having a vertically disposed flange zontal slot 43 receiving the adjusting screw 44 carried by the casting 6. A downwardly extending flange 45 on said guide has its lower edge in contact with the upper surface of the plate 40. By laterally adjusting this guide to position said flange 45 relative to the cutter IS, the edge of the fabric may be accuratelyguided as it is seized between the roller 3| and disk 22 and fed to the teeth of said cutter.

The roller 3| at the outer side of the disk 29 is peripherally beveled as shown at 46. Thus in operating upon seamed fabrics the stitched seam may be positioned closely adjacentto the driving disk 22 so that the pinking cuts will be relatively close to the seam line, without interference to the properdownward pressure of said roller upon the fabric soas to insure a sharp and accurate pinking cut..

In operating upon certain kinds of fabrics,

particularly when two or more layers or pliesthereof are to be pinked, the upper layer might tend to shift or move relative to the lower layer. In such cases I may use a pressure roller of the kind shown in Fig. 5, wherein the portion of said 42 provided with a hori roller with which the driving disk 22 cooperates is also knurled, as shown at 41.

To the other end of the horizontal shaft IS the gear 48 is suitably fixed in constant mesh with the gear l2. Thus in a very simple arrangement rotation will be transmitted from the power driven shaft 1 to the cutter l3 and disk 22 whereby said cutter and disk are simultaneously rotated about a common axis.

For the purpose of conveniently securing the pinking machine upon the work table or bench, I may provide the clamping bar, indicated at 49, disposed transversely beneath the work table and having upwardly curved end portions 50 in contact therewith. A vertical bolt extends downwardly through an opening in the cloth plate 5 and through an opening in the bar 43 and has its lower end threaded to receive the nut 52. By adjusting this nut, the bar 43 is moved upwardly on said bolt so that the ends of the bar are brought into tight clamping engagement with the under side of the table while the cloth plate is drawn downward, and its edge portions rigidly clamped upon the upper surface of the table around the opening 0 therein. Thus the machine will be securely held against bodily movement on the work table during operation, while it may be easily and quickly detached and removed from the table for convenience in transportation or in the making of repairs when necessary.

In the operation of the machine it will be understood that while the cutter l9 and disk 22 have unitary rotation about a common axis, said driving disk will automatically accommodate itself to various thicknesses of fabric materials and in the pressure of the roller 3| upon such materials will yieldably shift to an eccentric position relative to said cutter. Thus a proper cooperating relation between the driving disk 22 and pressure roller 3| is automatically maintained so that the machine will operate with equal efiiciency on both thin, delicate fabrics, and relatively heavy fabrics, in one or more layers or plies thereof. It will be appreciated that in a very simple and compact arrangement of the several elements, I have provided an inexpensive power operated machine of this kind with the necessary features of adjustment whereby the materials are positively and accurately fed and simultaneously pinked. Of course, it will be understood that the machine may be provided with a number of interchangeable cutters [9 having cutting teeth of various widths and of different designs.

I have herein shown and described a practical and satisfactory mechanical embodiment of the present invention, which has given excellent results in actual use. Nevertheless, it is contemplated that future developments may necessitate certain structural variations or modifications of the cooperating elements, and it is accordingly to be understood that I reserve the priviledge of resorting to all such legitimate changes in the details of construction 'and relative arrangement of the various parts, as may fairly be compre-v hended to be within the spirit and scope of the appended claims.

I claim:

1. In a pinking machine, a unitary assembly comprising work feeding means and pinking means rotatable about a common axis, and means permitting relative non-deformable eccentric displacement of said feeding and pinking means with respect to said axis.

2. In a pinking machine, a unitary assembly comprising a pinking'cutter rotatable about a fixed axis, a rigid work feeding member at one side thereof, and means for transmitting unitary rotation to said cutterand member while permitting bodily eccentric .displacement of said member relative to the cutter.

c1 p atlng in said opening, and a rigid work feeding member operating" in said opening at one side 3. In a pinking machine. a pinking cutter and p i a rigid work feeding member mounted to rotate in closely adjacent parallel planes, said feeding memberbeing eccentrically yieldable relative to the cutter. and means for imparting unitary rotation-to said cutter andmember.

4. In a pinking machlne, a pinking cutter and a work feeding disk arranged in closely adjacent parallel planes, and means for transmitting unitary rotation. to said cutter and'disk, including means frictionally coacting with the disk and permitting eccentric displacement thereof reiative to the cutter.

5. In a pinking machine, a power driven shaft, a pinking cutter fixed on said shaft. a work feeding disk at one side of said cutter, eccentrically displaceable relative thereto, and means resist- ;ing such displacement and urging the disk into frictional engagement with jrotation therewith.

the cutter for unitary .8. In a pinking machine, a cloth plate having an opening therein, a pinking cutter rotatable in a vertical plane about a fixed axis andoperof said cutter, and vertically movable therein relative to the cloth plate and cutter.

'7. In a pinking machine, a cloth plate having an opening therein, a pinking cutter rotatable in a vertical plane about a fixed axis and operating in said opening, and a frictionally driven work feeding disk vertically movable in said opening at one side of said cutter.

8. In apinking machine, a cloth plate having an opening therein, a pinking cutter rotatable in a vertical plane about a fixed axis and operating in said opening. a work feeding disk operating in said opening at one side of said cutter and means for transmitting unitary rotation to said disk and cuttergincluding means permitting eccentric displacement of the disk relative to the cutter. i

9. In a pinking machine, a cloth plate, a drive .shaft mounted thereon, a pinking cutter and workfeeding disk, and means for mounting said disk and cutter on said shaft in parallel relation for unitary rotation, said mounting means permitting eccentric displacement of the disk relative. to the cutter. t

, 10. In a pinking machine, rotatably mounted peripherally opposed rigid work feeding members,

one bodily yieldable relative to the other in its plane of rotation. and a pinking cutter mounted to rotate about a fixed axis, in a plane parallel with and at one side of the latter feeding member.-

11. In a pinkingmaehine, a pinking cutter and rigid work feeding member mounted to rotate f about aoommon horizontal axis, a pressure mem ber peripherally coacting with said feeding member to seize and feed the work, said latter member being eccentrically movable relative to said axis, and means yieldinglyv resisting such eccentric movement thereof.

.12. In a pinking machine, a cloth plate having an opening therein, a. horizontal power driven shaft mounted on the cloth plate, a rigid work feeding member driven by said shaft and operating in said opening, said member being vertically movable in said opening, mean yieldingly -acting with said feeding member to seize and feed the work to said cutter.

14. In a pinking machine, a cloth plate, a pinking cutter and work feeding member mounted on the cloth plate to rotate in parallel planes and operating means therefor, a pressure roller mounted on the cloth plate and peripherally coacting with said feeding member to seize and feed the work to said cutter, said roller having a peripherally beveled end portion to provide a tapering abutment face for a fabric seam ad-- jacent to said feeding member.

15. In a pinking machine, a rotary cutter, a member for feeding work to said cutter, a common operating shaft for said member and cutter, and means establishing a driving connection between said feeding member and cutter respectively and said shaft,said connection permitting of relative bodily movement between the feeding member and cutter during their op.- erative engagement with the work.

16. In a pinking machine, a rotary cutter, an operating shaft therefor, a member for feeding work to said cutter, and a driving connection. between said member and shaft which permits of bodily displacement-of said feeding member' relative to the cutter and shaft during the feeding of the work to said cutter.

17. In a pinking machine, a cutter rotatable about a fixed axis, a work feeding disk, and means for mounting said disk in cooperatively associated relation with said cutter for, unitary rotation therewith and including means which permits of bodily eccentric shifting movement of said feeding disk relative to the cutter.

18. In a pinking machine,

about a fixed axis, and a frictionally driven work feeding disk cooperatively associated with said cutter at one side thereof for bodily eccentric shifting movement relative to said cutter.

a cutter rotatable VICTOR J. .5 

